Overview
The LP2951CDM-3.3R2 is a micropower voltage regulator produced by onsemi. It is part of the LP2950 and LP2951 series, designed to maintain proper regulation with an extremely low input-to-output voltage differential. This regulator is suitable for battery-powered computer, consumer, and industrial equipment where extending the useful battery life is crucial. The LP2951CDM-3.3R2 offers a fixed output voltage of 3.3V and is available in an 8-pin Micro8 surface mount package.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 3.3 | V |
| Output Current | Up to 100 | mA |
| Quiescent Bias Current | 75 | μA |
| Dropout Voltage | 30 | mV |
| Operating Ambient Temperature Range | -40 to +125 | °C |
| Package Type | 8-pin Micro8 surface mount | |
| Output Voltage Tolerance (for 'A' suffix devices) | ±0.5% |
Key Features
- Low quiescent bias current of 75 μA, which helps in extending battery life.
- Low input-to-output voltage differential, making it efficient for low-voltage applications.
- Internal current and thermal limiting protection for safe operation.
- Error Output feature that can signal external circuitry of an out-of-regulation condition or serve as a microprocessor power-on reset.
- Shutdown input allowing a logic level signal to turn the regulator output on or off.
- Requires only a 1.0 μF output capacitor for stability.
- Tight line and load regulation for stable output voltage.
Applications
The LP2951CDM-3.3R2 is ideally suited for various applications, including:
- Battery-powered computer systems.
- Consumer electronics where low power consumption is critical.
- Industrial equipment requiring stable and efficient voltage regulation.
These regulators are also useful in any scenario where extending the useful battery life is desirable.
Q & A
- What is the output voltage of the LP2951CDM-3.3R2?
The output voltage is fixed at 3.3V.
- What is the maximum output current of the LP2951CDM-3.3R2?
The maximum output current is up to 100 mA.
- What is the quiescent bias current of the LP2951CDM-3.3R2?
The quiescent bias current is 75 μA.
- What is the dropout voltage of the LP2951CDM-3.3R2?
The dropout voltage is 30 mV.
- What is the operating temperature range of the LP2951CDM-3.3R2?
The operating temperature range is -40°C to +125°C.
- What package type is the LP2951CDM-3.3R2 available in?
The LP2951CDM-3.3R2 is available in an 8-pin Micro8 surface mount package.
- Does the LP2951CDM-3.3R2 have internal protection features?
- What is the purpose of the Error Output feature in the LP2951CDM-3.3R2?
The Error Output can signal external circuitry of an out-of-regulation condition or serve as a microprocessor power-on reset.
- How does the Shutdown input work on the LP2951CDM-3.3R2?
The Shutdown input allows a logic level signal to turn the regulator output on or off.
- What type of capacitor is required for stability with the LP2951CDM-3.3R2?
A 1.0 μF output capacitor is required for stability.
